Overview
- Service began on December 16, activating the stretch from San Giovanni to beneath Via dei Fori Imperiali and enabling an interchange with Metro B at Colosseo.
- The exhibition spaces at Porta Metronia remain closed, with the mayor saying the museum is likely to open in February after installations are completed.
- The project segment took roughly 12–13 years and cost about €660 million, bringing Metro C to 24 active stations over approximately 21.5 km.
- Archaeological finds include a second‑century Roman military complex with mosaics and votive objects integrated into displays, with station depths reaching about 30–32 meters using top‑down excavation.
- Contractors led by Webuild are receiving the next work areas by the end of January, and the company estimates the Piazza Venezia station will take about 10 years to build before subsequent stops follow.